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decompression sickness

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https://www.readbyqxmd.com/read/28221393/comex-30-f%C3%A3-r-behandling-av-tryckfallssjuka-med-neurologiska-symtom
#1
Anders Rosén, Nicklas Oscarsson, Olaf Gräbel, Göran Sandström
The use of treatment table COMEX 30 for severe neurological decompression sickness Decompression sickness (DCS) can occur after all dives. It often requires treatment in a pressure chamber. DCS with symptoms from the nervous system is particularly serious. In certain cases, the commonly used recompression table (USN TT6) does not suffice to revert severe neurological symptoms. A more advanced recompression table, COMEX 30, can be utilized in these cases. We report three cases of DCS where treatment according to COMEX 30 successfully resolved neurological symptoms...
February 17, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28217293/application-of-hyperbaric-oxygen-in-liver-transplantation
#2
REVIEW
Hu Lv, Cui-Hong Han, Xue-Jun Sun, Wen-Wu Liu
In recent years, hyperbaric oxygen (HBO) has been used in the treatment of a lot of diseases such as decompression sickness, arterial gas embolism, carbon dioxide poisoning, soft tissue infection, refractory osteomyelitis, and problematic wound, but little is known about its application in liver transplantation. Although several studies have been conducted to investigate the protective effects of HBO on liver transplantation and liver preservation, there are still some controversies on this issue, especially its immunomodulatory effect...
October 2016: Medical Gas Research
https://www.readbyqxmd.com/read/28159488/lateral-lumbar-retroperitoneal-transpsoas-approach-in-the-setting-of-spondylodiscitis-a-technical-note
#3
George M Ghobrial, Fadi Al-Saiegh, Daniel Franco, Daniel Benito, Joshua Heller
Thoracolumbar spondylodiscitis is a morbid disease entity, impacting a sick patient population with multiple comorbidities. Wherever possible, surgical measures in this population should limit the extent of soft tissue disruption and overall morbidity that is often associated with anteroposterior thoracolumbar decompression and fusion. The authors describe the rationale, technique, and use of the lateral lumbar transpsoas retroperitoneal approach in tandem with posterior decompression and instrumented fusion in the treatment of circumferential thoracolumbar spondylodiscitis with or without epidural abscesses...
January 31, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28150725/allometric-scaling-of-decompression-sickness-risk-in-terrestrial-mammals-cardiac-output-explains-risk-of-decompression-sickness
#4
Andreas Fahlman
A probabilistic model was used to predict decompression sickness (DCS) outcome in pig (70 and 20 kg), hamster (100 g), rat (220 g) and mouse (20 g) following air saturation dives. The data set included 179 pig, 200 hamster, 360 rat, and 224 mouse exposures to saturation pressures ranging from 1.9-15.2 ATA and with varying decompression rates (0.9-156 ATA • min(-1)). Single exponential kinetics described the tissue partial pressures (Ptiss) of N2: Ptiss =  ∫(Pamb - Ptiss) • τ(-1) dt, where Pamb is ambient N2 pressure and τ is a time constant...
February 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28119191/bayesian-approach-to-decompression-sickness-model-parameter-estimation
#5
L E Howle, P W Weber, J M Nichols
We examine both maximum likelihood and Bayesian approaches for estimating probabilistic decompression sickness model parameters. Maximum likelihood estimation treats parameters as fixed values and determines the best estimate through repeated trials, whereas the Bayesian approach treats parameters as random variables and determines the parameter probability distributions. We would ultimately like to know the probability that a parameter lies in a certain range rather than simply make statements about the repeatability of our estimator...
January 17, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28114372/bubble-induced-endothelial-microparticles-promote-endothelial-dysfunction
#6
Xuhua Yu, Jiajun Xu, Guoyang Huang, Kun Zhang, Long Qing, Wenwu Liu, Weigang Xu
Decompression sickness is a systemic pathophysiological process caused by bubbles and endothelial microparticles (EMPs) are established markers reflecting competency of endothelial function and vascular biology. Here, we investigated the effects of bubble-induced EMPs on endothelial cells in vitro and vivo. Rat pulmonary microvascular endothelial cells (PMVECs) were isolated and stimulated by bubbles and bubble-induced EMPs were collected and incubated with normal PMVECs in vitro. Cell viability and apoptosis were detected using Cell Counting Kit-8 assay and Annexin V FITC/PI double staining, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28112272/endothelia-targeting-protection-by-escin-in-decompression-sickness-rats
#7
Kun Zhang, Zhongxin Jiang, Xiaowei Ning, Xuhua Yu, Jiajun Xu, Peter Buzzacott, Weigang Xu
Endothelial dysfunction is involved in the pathogenesis of decompression sickness (DCS) and contributes substantively to subsequent inflammatory responses. Escin, the main active compound in horse chestnut seed extract, is well known for its endothelial protection and anti-inflammatory properties. This study aimed to investigate the potential protection of escin against DCS in rats. Escin was administered orally to adult male rats for 7 d (1.8 mg/kg/day) before a simulated air dive. After decompression, signs of DCS were monitored, and blood and pulmonary tissue were sampled for the detection of endothelia related indices...
January 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28103732/evaluation-of-antivenom-therapy-for-vipera-palaestinae-bites-in-children-experience-of-two-large-tertiary-care-pediatric-hospitals
#8
Dikla Pivko-Levy, Itamar Munchnak, Ayelet Rimon, Uri Balla, Dennis Scolnik, Christopher Hoyte, Yair Voliovitch, Miguel Glatstein
BACKGROUND: Antivenom has been successfully used to treat systemic and progressive, local manifestations of envenomation inflicted by Vipera (V.) palaestinae, the most common venomous snake in Israel. The objective of this study was to evaluate the fixed dose V. palaestinae monovalent (equine) immunoglobulin G antivenom used in two pediatric emergency departments. In particular, we wanted to assess the need for repeated antivenom administration and the rate of adverse antivenom effects in children...
January 20, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28095955/preconditioning-to-reduce-decompression-stress-in-scuba-divers
#9
Peter Germonpré, Costantino Balestra
BACKGROUND: Using ultrasound imaging, vascular gas emboli (VGE) are observed after asymptomatic scuba dives and are considered a key element in the potential development of decompression sickness (DCS). Diving is also accompanied with vascular dysfunction, as measured by flow-mediated dilation (FMD). Previous studies showed significant intersubject variability to VGE for the same diving exposure and demonstrated that VGE can be reduced with even a single pre-dive intervention. Several preconditioning methods have been reported recently, seemingly acting either on VGE quantity or on endothelial inflammatory markers...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28009387/diving-exposure-and-health-effects-in-divers-working-in-different-areas-of-professional-diving
#10
Ågot Irgens, Kari Troland, Rune Djurhuus, Marit Grønning
BACKGROUND: The aim of the present study was to compare diving exposure and health effects in different areas of professional diving. MATERIALS AND METHODS: The Norwegian Labour Inspection Authority's Diving Register contains data on all professional inshore divers who have held a diving certificate at any time since 1980. Of these divers, the "Norwegian diver 2011" questionnaire was completed by 2848 (48.7%). A total of 1167 male divers reported that they often worked in one area of diving only (rescue diving, diving instruction, fish farming, quay/construction work and offshore/oil related)...
2016: International Maritime Health
https://www.readbyqxmd.com/read/28003829/cardiac-arrest-as-a-consequence-of-air-embolism-a-case-report-and-literature-review
#11
Zia Ur Rahman, Ghulam Murtaza, Mohsin Pourmorteza, Wael K El Minaoui, Pooja Sethi, Peyman Mamdouhi, Timir Paul
Air embolism is an infrequent but potentially catastrophic complication. It could be a complication of invasive procedures including surgery, central line placement, positive pressure ventilation, trauma, hemodialysis, pacemaker placement, cardiac ablation, and decompression sickness. Usually, it does not cause any hemodynamic complication. In rare cases, it could lodge in the heart and cause cardiac arrest. We present a case of an 82-year-old white female who underwent computed tomography (CT) guided biopsy of right lung pulmonary nodule...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27965591/pre-dive-whole-body-vibration-better-reduces-decompression-induced-vascular-gas-emboli-than-oxygenation-or-a-combination-of-both
#12
Costantino Balestra, Sigrid Theunissen, Virginie Papadopoulou, Cedric Le Mener, Peter Germonpré, François Guerrero, Pierre Lafère
Purpose: Since non-provocative dive profiles are no guarantor of protection against decompression sickness, novel means including pre-dive "preconditioning" interventions, are proposed for its prevention. This study investigated and compared the effect of pre-dive oxygenation, pre-dive whole body vibration or a combination of both on post-dive bubble formation. Methods: Six healthy volunteers performed 6 no-decompression dives each, to a depth of 33 mfw for 20 min (3 control dives without preconditioning and 1 of each preconditioning protocol) with a minimum interval of 1 week between each dive...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27875357/optimal-timing-of-endoscopic-retrograde-cholangiopancreatography-in-acute-cholangitis
#13
Linda A Hou, Loren Laine, Nima Motamedi, Ara Sahakian, Christianne Lane, James Buxbaum
OBJECTIVES: Acute cholangitis mandates resuscitation, antibiotic therapy, and biliary decompression. Our aim was to define the optimal timing of endoscopic retrograde cholangiopancreatography (ERCP) for patients with acute cholangitis. METHODS: Clinical data on all cases of cholangitis managed by ERCP were prospectively collected from September 2010 to July 2013. The clinical impact of the time to ERCP, defined as the time from presentation in the emergency department to the commencement of the ERCP, was determined...
November 21, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27826633/air-embolisms-in-pulmonary-artery-right-atrium-and-portal-vein-an-unusual-case-of-decompression-sickness
#14
Cristina Murcia-Gubianas, Claudia Vera Ching, Josep-Maria Sirvent
No abstract text is available yet for this article.
November 8, 2016: Intensive Care Medicine
https://www.readbyqxmd.com/read/27795792/aseptic-necrosis-of-the-femoral-head-after-pregnancy-a-case-report
#15
Kawtar Nassar, Wafae Rachidi, Saadia Janani, Ouafa Mkinsi
A documented case of beginning aseptic necrosis of the femoral head associated with pregnancy together with a review of the literature about this rare complication of pregnancy is presented. The known risk factors of osteonecrosis are; steroid use, alcoholism, organ transplantation, especially after kidney transplant or bone marrow transplantation bone, systemic lupus erythematosus, dyslipidemia especially hypertriglyceridemia, dysbaric decompression sickness, drepanocytosis and Gaucher's disease. Among the less established factors, we mention procoagulations abnormalities, HIV infection, chemotherapy...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27748209/hyperbaric-oxygen-therapy-for-sudden-sensorineural-hearing-loss-in-divers
#16
REVIEW
A W Van Der Wal, P J A M Van Ooij, J A De Ru
OBJECTIVE: Sudden sensorineural hearing loss in divers may be caused by either inner-ear barotrauma or inner-ear decompression sickness. There is no consensus on the best treatment option. This study aimed to evaluate the therapeutic value of hyperbaric oxygen therapy for sudden sensorineural hearing loss in divers. METHOD: A literature review and three cases of divers with sudden sensorineural hearing loss treated with hyperbaric oxygen therapy are presented. RESULTS: Hyperbaric oxygen therapy resulted in hearing improvement in 80 per cent of patients: 39 per cent had hearing improvement and 41 per cent had full recovery...
November 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27727851/clinical-profile-of-decompression-sickness-in-deep-sea-divers
#17
Ajinkya Borhade, S Arulrhaj, B Kannan, Rakesh Sonavane
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27634609/initial-severity-scoring-and-residual-deficit-in-scuba-divers-with-inner-ear-decompression-sickness
#18
Emmanuel Gempp, Pierre Louge, Sébastien de Maistre, Jean-Baptiste Morvan, Nicolas Vallée, Jean-Eric Blatteau
BACKGROUND: Inner ear decompression sickness (IEDCS) in scuba diving results in residual vestibulocochlear deficits with a potential impact on health-related quality of life. The aim of this study was to determine the predictive factors for poor clinical recovery and to try to establish a prognostic score on initial physical examination. METHODS: The medical records of injured divers with IEDCS treated in our facility between 2009 and 2014 were retrospectively analyzed...
August 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/27633737/gut-fermentation-seems-to-promote-decompression-sickness-in-humans
#19
Sébastien de Maistre, Nicolas Vallée, Emmanuel Gempp, Pierre Louge, Claude H B Duchamp, Jean-Eric Blatteau
Introduction Massive bubble formation after diving can lead to decompression sickness (DCS) that can result in neurological disorders. In experimental dives using hydrogen as the diluent gas, decreasing the body's H2 burden by inoculating hydrogen-metabolizing microbes into the gut reduces the risk of DCS. In contrast, we have shown that gut bacterial fermentation in rats on a standard diet promotes DCS through endogenous hydrogen production. So we set out to test these experimental results in humans. Materials and methods 39 divers admitted into our hyperbaric center with neurological DCS (Affected Divers) were compared with 39 healthy divers (Unaffected Divers)...
September 15, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27616622/to-close-or-not-to-close-contemporary-indications-for-patent-foramen-ovale-closure
#20
Lucas S Zier, Horst Sievert, Vaikom S Mahadevan
Patent foramen ovale (PFO) is a common congenital cardiac abnormality and that has been associated with several disease processes including transient ischemic attacks (TIA), stroke, migraine headaches with aura, decompression sickness, platypnea-orthodeoxia syndrome, and shunt induced cyanosis. Controversy exists regarding closure of PFO as a therapeutic treatment modality for these disease processes. This review addresses the contemporary clinical indications for PFO closure. Areas covered: We conducted a comprehensive literature search of contemporary research studies focusing on randomized trials and meta-analyses comparing medical therapy and device closure of PFOs for the treatment of PFO associated clinical syndromes...
November 2016: Expert Review of Cardiovascular Therapy
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